Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Planktonic organisms challenged against test solutions. (a) Bacillus cereus, (b) Candida albicans, (c) Escherichia coli, (d) Pseudomonas aeruginosa; (e) Staphylococcus aureus, (f) Staphylococcus epidermidis. Parabens, heparin/parabens combination; benzyl, heparin/benzyl combination; cfu, colonu-forming unit. Points on the graph indicate the number of organisms that survived after the indicated exposure time to each test solution.
